#!/bin/bash
#  $HeadURL: https://svn.pasta.freemyip.com/main/miniade/trunk/bin/nop-sh $ $LastChangedRevision: 10133 $

#  Modules
. $(miniade) || { echo "${0##*/}: ERROR: miniade failed (hint: run 'miniade' to see error)" >&2; exit 1; }

#  Configurable stuff

#  Other globals

main()
{
    local MY_ARGS

    #  Defaults for options

    #  Process options
    miniade_process_options --help-handler=help MY_ARGS "$@" && set -- "${MY_ARGS[@]}"

    #  Process arguments
    [ $# = 1 ] || miniade_bad_usage
    STOP_TIME=$1

    #  Sanity checks and derivations
    [[ $STOP_TIME =~ ^([0-2][0-9]):?([0-5][0-9])$ ]] || miniade_bad_usage
    NOW=$(date +%s)
    THEN=$(date -d "${BASH_REMATCH[1]}:${BASH_REMATCH[2]}" +%s)
    if (( $THEN <= $NOW )); then
        THEN=$(date -d "tomorrow ${BASH_REMATCH[1]}:${BASH_REMATCH[2]}" +%s)
    fi
    ((PERIOD=THEN-NOW))

    #  Guts
    sleep $PERIOD
}

help()
{
    local PROGNAME

    miniade_get_progname PROGNAME
    echo "Usage: $PROGNAME [ <standard-options> ] <HHMM>"
    exit 0
}

main "$@"